Application of single-pass four-throw releasable suture drainage tube ligation technique in Ahmed glaucoma valve implantation

Abstract

AIM: To evaluate the application of single-pass four-throw releasable suture drainage tube ligation technique in Ahmed glaucoma valve(AGV)implantation.METHODS: A total of 78 patients(78 eyes)with refractory glaucoma who underwent AGV implantation in the People's Hospital of Leshan from May 2020 to January 2022 were retrospectively analyzed. According to the treatment, the patients were divided into the modified AGV implantation group, with 43 patients(43 eyes)treated by modified AGV implantation, ligating the drainage tube with single-pass four-throw releasable suture, and the traditional AGV implantation group, with 35 patients(35 eyes)treated by traditional AGV implantation. Followed-up for 6mo, the intraocular pressure(IOP), success rate and complications were observed at 1d, 1 and 2wk and 1 and 6mo after operation.RESULTS: Postoperative IOP at all follow-up visits was significantly lower than that before surgery in both groups(all P0.05). The incidence of shallow anterior chamber was 5% in the modified AGV implantation group and 23% in the traditional AGV implantation group at 1wk after surgery(P0.05).CONCLUSION:During AGV implantation, ligation of drainage tube with single-pass four-throw releasable suture can effectively reduce IOP and reduce the incidence of shallow anterior chamber in early postoperative stage. Furthermore, the technique is safe and efficacious.

Keywords

• single-pass four-throw
• releasable suture
• glaucoma valve
• shallow anterior chamber